Daniel Aghassian,Thomas W. Stouffer,Jonathan Larcom,Gaurav Gupta
申请号：
US15616524
公开号：
US20170361116A1
申请日:
2017.06.07
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the sense coils are preferably formed in one or more traces of a circuit board. One or more voltages induced on the one or more sense coils can be used to determine one or more parameters (magnitude, phase angle, resonant frequency) indicative of the position between the charging coil and the IMD, which position may include the radial offset and possibly also the depth of the charging coil relative to the IMD. Knowing the position, the power of the magnetic field produced by the charging coil can be adjusted to compensate for the position.
